Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
  • A01N63/50—Isolated enzymes; Isolated proteins
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
  • A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
  • A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
  • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
  • A01N37/44—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio analogue of a carboxylic group, e.g. amino-carboxylic acids
  • A01N37/46—N-acyl derivatives
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K38/00—Medicinal preparations containing peptides
  • A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
  • A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
  • A61K38/1767—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07K—PEPTIDES
  • C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
  • C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
  • C07K14/43504—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
  • C07K14/43513—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from arachnidae
  • C07K14/43518—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from arachnidae from spiders
• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07K—PEPTIDES
  • C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
  • C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
  • C07K14/43504—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
  • C07K14/43513—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from arachnidae
  • C07K14/43522—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from arachnidae from scorpions

Definitions

• Topical insecticidal activity refers to a toxin's ability to inhibit the growth, impair the movement or even kill an insect when the toxin is delivered to the insect or the insect's environment by spraying, or other means, as opposed to delivering the toxin directly to the insect's gut or internal organs by injection or inducing the insect to consume the toxin from its food, for example an insect feeding upon a transgenic plant.
• Procedures which use solvents to increase the toxicity of toxic insect peptides. Those procedures involve the preparation of the peptides by drying the peptides, if needed, followed by the addition of either: 1) a polar organic solvent, with or without water, to a dried peptide, or 2) a polar aprotic solvent or other adjuvant to the dried peptide, followed by the addition of either: 1) a polar organic solvent, with or without water, (where a polar aprotic solvent is added first or 2) a polar aprotic solvent, or other adjuvant to the peptide polar organic solvent (where the polar organic solvent is added first), to the peptide formulation.
• a method of increasing the topical insecticidal activity of a toxic insect peptide comprising: adding either i) a polar organic solvent or ii) a polar aprotic solvent or adjuvant to the peptide and then adding either i) a polar organic solvent or ii) a polar aprotic solvent or adjuvant, which ever was not added initially to the initial peptide formulation of above.
• a method is described herein where the polar organic solvent comprises from about 50, to about 99.9 percent (%) of the final volume of the formulation.
• the polar organic solvent comprises from about 60, 70, 85, 90 to about 99.0 percent (%) of the final volume of the formulation.
• the method is described wherein the polar organic solvent comprises from about 70, to about 99.0 percent (%) of the final volume of the formulation.
• the method is specifically described wherein the polar organic solvent comprises from about 60, 70, 80, 85, 90, to about 99.0 percent (%) of the final volume of the formulation.
• the polar organic solvent may be selected from acetone, methanol, ethanol, propanol and all its isomers, methyl ethyl ketone, diethyl ketone, acetonitrile, ethyl acetoacetate.
• the polar organic solvents selected from acetone, methanol, ethanol, propanol and all its isomers are especially useful.
• the polar aprotic solvent or adjuvant will comprise from about 20%, to about 0.001%, of the final volume of the formulation. Specifically the polar aprotic solvent or adjuvant, comprises from about 15%, to about 0.005%, from about 10%, to about 0.01%, from about 8 %, to about 0.1%, from about 5%, to about 0.1 %, of the final volume of the formulation.
• the polar aprotic solvent or adjuvant is selected from dimethyl sulfoxide, dirnethylformamide, dioxane and hexamethylphosphorotriamide. Dimethyl sulfoxide, also known as DMSO is exemplified.
• the toxic insect peptides are preferably those with a) greater than 10 amino acid residues and less than 3000 amino acid residues; b) a molecular weight from about 550 Da to about 350.000 Da; and c) they have insecticidal activity.
• the peptides may optionally have 1 to 5 disulfide bonds.
• the insecticidal activity of the peptides optionally are peptides having topical activity in at least one reproducable topical insecticidal assay.
• the toxic insect peptides may be selected from the venom of a spider, mite, scorpion, snake, snails, certain plants or any combination thereof.
• the spider may be an Australian funnel web spider, and peptides from the genus of Atrax or Hadronyche are easily made special using the procedures described herein. Specific peptides from spiders, scorpions and plants are provided in the sequence listing.
• formulations of special toxic peptides comprising: a) a peptide; b) a polar organic solvent; c) a polar aprotic solvent or adjuvant; d) wherein said polar organic solvent comprises from about 80, to about 99 percent (%) of the final volume of the formulation; e) wherein said polar aprotic solvent or adjuvant comprises from about 1, to about 10 percent (%) of the final volume of the suspension; and f) an optional water phase, wherein said water phase comprises from 0 (zero), to about 10 percent (%) of the final volume of the suspension.
• peptides made special by the process of this invention are new and may be separately claimed. These peptides are described by all of their properties and not simply their sequence. For the most part the peptide sequence information of the peptides which can be made special, as described herein, are known; however, once treated the same peptides will have greated topical activity. These peptides made special are novel with unique properties, both the peptides and the process of making them are disclosed and claimed herein.
• the special toxic peptide may be applied as a dry or liquid formulation.
• the formulation may include wetting and dispersing agents, surfactants and other common components of insecticidal peptide formulations.
• special toxic peptides produced as the product of any of the processes described herein.
• the processes described herein can be used with any peptides.
• the following peptides are mentioned by way of specific examples and are not intended to limit the range, type or number of peptides can be be made special using this process.
• Active ingredient means a peptide or polypeptide, herein it is sometimes called a toxin.
• Insecticidal activity means that on or after exposure of the insect to the active ingredient, the insect either dies, stops or slows its movement or its feeding, stops or slows its growth, fails to pupate, cannot reproduce or cannot produce fertile offspring.
• Insect('s) environment means any place or surface that is or will be exposed to an insect.
• the insect's environment includes the places it inhabits, its habitat and the food it touches, eats or consumes.
• Toxic insect peptide means a peptide having insecticidal activity when ingested by or injected into an insect but having little, low or no topical insecticidal activity.
• Peptide made special means the same as “Special topical peptide” below.
• Poly aprotic solvents are organic solvents that have ion dissolving power but lack an acidic hydrogen. A polar aprotic solvent cannot donate hydrogen (H + or proton.) These solvents generally have high dielectric constants and high polarity.
• DMSO dimethyl sulfoxide
• MSO® methyl sulfoxide
• Adjuvants as polar aprotic solvents Certain adjuvants can also be polar aprotic solvents. Mixtures of oils with surfactants, commonly referred to as adjuvants are other examples of polar aprotic solvents. Crop oils in combination with surfactants can also act as polar aprotic solvents.
• MSO® is a methylated seed oil and surfactant blend that uses methyl esters of soya oil in amounts of between about 80 and 85 percent petroleum oil with 15 to 20 percent surfactant. Use and descriptions of MSO® used as a polar aprotic solvent can be found in Example 7.
• Polar organic solvents are organic solvents with dipole moments sufficient to confer a dielectric constant of 15 or higher, acetone being one example.
• Other examples of polar organic solvents include compounds with a dissociable H + , such as lower alkyl alcohols. Further examples that should be considered representative and not limiting are as follows: acetone, methanol, ethanol, propanol, all isomers of propanol including 1- and 2-, propanol (n- and iso- propanol, respectively).
• polar organic solvents which might be successfully used as part of this formulation can be determined by those skilled in the art; these may include methyl ethyl ketone, diethyl ketone, acetonitrile, ethyl acetoacetate, etc.
• "Special topical peptide” means a peptide previously having low topical insecticidal activity that has relatively higher topical insecticidal activity because of the procedures described herein used to increase the topical activity of peptides.
• Topical activity or “topical insecticidal activity” means insecticidal activity that results from exposure or contact of the insect's outer layers, to the insecticidal peptide. Topical activity can result from exposure to or contact between a treated material or surface and the external part of the insect, such as its feet, abdomen, antenna, mouth. Topical activity can result from insect preening of external parts of the insect followed by ingestion of the toxin. Treatment of any material or surface with insecticide or toxin that then comes in contact with the insect with resultant insecticidal activity is considered a topical activity.
• Topical application means the application of the active ingredient to an insect's environment, or the insect itself.
• Topical application in any manner including: spraying, painting, baiting, impregnating materials, such as treating paper or other objects that are then placed in the same area when the insect is known or expected to visit or frequent. Topical application can also mean direct contact with the insect and the insecticide.
• the peptides made special are then used as desired for effect.
• Application and use of the peptides made special may be with any means, either standard or as determined to be effective by a practicioner who is skilled in the art, including but not limited to: spraying through an atomizer or other type of spray nozzle, direct/indirect application of droplets of the formulation, application of the dried residue of the formulation to any body surface of the targeted insect, immersion of the targeted insect in a bath, etc.
• the peptide is made special upon completion of the addition of the polar organic solvent and the polar aprotic solvent or other adjuvant, with the solvents added in either order. It is better to start with a peptide that is in a non-aqueous environment.
• the preferred order of solvent addition will be determined by a practicioner who is skilled in the art of insecticidal formulation, giving attention and consideration to the particular peptides used. Numerous variations of the manner in which the solvent is added can be made and should be apparent to one skilled in the art. Some variations and more details of the procedure are provided below.
• Preparation of the peptide by removing water may be needed if the starting peptides are dissolved in water.
• the procedure of making the peptides special may be practiced with peptides having either high or low solubility in water. Often peptides are prepared in water based solvents or expressed in aqueous environments. If the peptide to be made special is in an aqueous environment, most of the water should first be removed, i.e. the peptide should be dried. If the peptide is already in a dried state, then drying is not needed. Preparation of peptides can involve concentrating, purifying, isolating or identifying peptides and or the amounts or concentration of the peptide in the sample.
• the peptide Once the peptide is in a preferred state, condition or concentration, it should be "dried."
• the peptide is prepared by having most of the water removed, it is ready for mixing with either the polar organic solvent or the polar aprotic solvent or adjuvant. Better results are sometimes obtained when the polar organic solvent is added to the dried peptide before the polar aprotic solvent is added and order is described below, but with some peptides in some situations the polar aprotic solvent is added to the dried peptide followed by addition of the polar organic solvent. [0034] The Polar Organic Solvent.
• polar organic solvents can be used, some seem to produce peptides having greater topical activity than others. We have found the following polar organic solvents work well in this procedure to make peptides special: acetone, methanol, ethanol, propanol, all isomers of propanol including 1- and 2-, propanol (n- and iso- propanol, respectively).
• Other polar organic solvents which might be successfully used as part of this formulation can be determined by those skilled in the art; these may include methyl ethyl ketone, diethyl ketone, acetonitrile, ethyl acetoacetate, etc.
• the mixing of peptide and solvent can be done with any laboratory method of mixing such as vortex mixing, stirring, shaking, etc.
• the polar organic solvent can be as much as about 98 to 100% of the liquid in the formulation, and the peptide will likely form a precipitate in the solvent.
• the formulation may appear as a cloudy or hazy suspension. It should be vigorously mixed.
• the polar organic solvent can have some water in it, see “Water” below, but pure or dry solvent also works well. Optimal final concentrations of water and polar organic solvent can be determined for a formulation of a particular special topical peptide by those skilled in the art.
• the peptide may be sonicated or otherwise treated to further increase its topical activity. Sonication may break up the peptide particles in solution and reduce the size of the suspended particles. Sonication or other procedures to reduce particle size appears to increase topical toxicity of the peptides. Other procedures that reduce particle size, in addition to sonication, may be used to increase topical activity. Various procedures to reduce particle size should be known to those familiar with peptide manipulation. Without being limited to any particular procedure or mechanism, using a high speed blender, shaking or stirring with glass beads may also be useful to increase the toxicity of the special toxic peptides.
• the polar organic solvent does not need to be pure or absolute when used: it can contain water. Moreover, this water may contain salts, organic molecules, peptides, etc. Water can presumably be added to the peptide either before the polar organic solvent is added to the peptide formulation, or at the same time or after addition of the polar organic solvent. Care should be taken not to use too large a concentration of water, as we have observed that this can reduce or eliminate the activity of certain formulations of certain special topical peptides.
• the water need not be pure, it can include various proteins such as chitinases, phospholipases, lectins, etc., or salts, sugars, carbohydrates, etc., in order to create a more useful and stable final solution.
• the water phase can initially be pure water and then various proteins such as chitinases, phospholipases, lectins etc. could be added to the water phase after it is mixed with the polar organic solvent and the peptides.
• the polar aprotic solvent can be used to be pure water and then various proteins such as chitinases, phospholipases, lectins etc.
• the polar aprotic solvent or adjuvant can be used as the first ingredient added to the dried peptide or it can be added to the peptide polar organic solvent (water optional) formulation described above.
• Those skilled in the art can determine whether the polar aprotic solvent or the polar organic solvent should be the first liquid added to the dried peptide in order to determine the better way to make the peptides special. This determination will depend on the circumstances of each case and in particular exactly which toxic insect peptide is used and the final formulation desired. However, such variations should be practiced with care, as we have observed that in some cases lower insecticidal activity resulted if the polar aprotic solvent was added to the peptide before the polar organic solvent is added.
• Polar aprotic solvents lack an acidic hydrogen. These solvents generally have high dielectric constants and high polarity. Examples include dimethyl sulfoxide, dimethylformamide, dioxane and hexamethylphosphorotriamide.
• the adjuvant can be any oil and/or emulsifying surfactant formulated for agricultural application of pesticides and especially peptides. These commercial formulations typically have oils and emulsifying surfactants formulated to "carry and spread" the active ingredients. Examples include: “Aero Dyneamic” from Helena Chemical Co. which has methylated or ethylated vegetable oil, a nonionic surfactant and a buffering agent or acidifier. It is further described as a "proprietary blend of ethoxylated alkyl phosphate esters, polyalkylene modified polydimethylsiloxane, nonionic emulsifiers and methylated vegetable oils. For aerial use only at 2-8 qt/100 gal. 30-70 percent. Provides pH reduction and buffering, NIS and oil blend" See label for rates. Further examples and manufactures of adjuvants can be found in Table 1.
• Optimal final concentrations of polar aprotic solvent and/or adjuvant can be determined for the formulation of a particular topical peptide made special by those skilled in the art.
• the adjuvant Silwet L-77 works well at a final concentration as low as 0.01%, and those skilled in the art should be able to successfully find other adjuvants using even higher or lower values than the ranges described here for particular formulations of particular topical peptides made special.
• Examples of toxic insect peptides are well known and can be found in numerous references. They can be identified by their peptidic nature and their activity, usually oral or injection insecticidal activity. Here we provide a few examples to better illustrate and describe the invention, but the invention is not limited to these examples. All of these examples and others not shown here are descriptive of new materials, described and claimed here for the first time.
• Toxic insect peptides are peptides of greater than 5 amino acid residues and less than 3000 amino acid residues. They range in molecular weight from about 550 Da to about 350,000 Da . Toxic insect peptides have some type of insecticidal activity. Typically they show activity when injected into insects but most do not have significant activity when applied to an insect topically. The insecticidal activity of toxic insect peptides is measured in a variety of ways. Common methods of measurement are widely known to those skilled in the art.
• Such methods include, but are not limited to determination of median response doses (e.g., LD50, PD50, LCjo, ED 50 ) by fitting of dose-response plots based on scoring various parameters such as: paralysis, mortality, failure to gain weight, etc. Measurements can be made for cohorts of insects exposed to various doses of the insecticidal formulation in question. Analysis of the data can be made by creating curves defined by probit analysis and/or the Hill Equation, etc. In such cases, doses would be administered by hypodermic injection, by hyperbaric infusion, by presentation of the insecticidal formulation as part of a sample of food or bait, etc.
• median response doses e.g., LD50, PD50, LCjo, ED 50
• Toxic insect peptides are defined here as all peptides shown to be insecticidal upon delivery to insects either by hypodermic injection, hyperbaric infusion, or upon per os delivery to an insect (i.e., by ingestion as part of a sample of food presented to the insect).
• This class of peptides thus comprises, but is not limited to, many peptides produced naturally as components of the venoms of spiders, mites, scorpions, snakes, snails, etc.
• This class also comprises, but is not limited to, various peptides produced by plants (e.g., various lectins, ribosome inactivating proteins, and cysteine proteases), and various peptides produced by entomopathogenic microbes (e.g. the Cry I/delta endotoxin family of proteins produced by various Bacillus species.)
• plants e.g., various lectins, ribosome inactivating proteins, and cysteine proteases
• entomopathogenic microbes e.g. the Cry I/delta endotoxin family of proteins produced by various Bacillus species.
• EP patent 1 812 464 Bl published and granted 08.10.2008 Bulletin 2008/41, specifically the peptide sequences listed in the sequence listing, toxins that can form 2-4 intrachain disulphide bridges, and those as numbered 1-39, and those named U-ACTX polypeptides, and valiants thereof, and the peptides appearing in paragraphs 0023 to 0055, and appearing in Fig. 1.
• homologous variants of sequences mentioned have homology to such sequences or referred to herein which are also identified and claimed as suitable for making special according to the processes described herein including but not limited to all homologous sequences including homologous sequences having at least any of the following percent identities to any of the sequences disclosed her or to any sequence incorporated by reference: 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90% or 95% or greater identitiy to any and all sequences identified in the patents noted above, and to any other sequence identified herein, including each and every sequence in the sequence listing of this application.
• homologous or homology when used herein with a number such as 30% or greater then what is meant is percent identity or percent similarity between the two peptides.
• percent identity or percent similarity when used without a numeric percent then it refers to two peptide sequences that are closely related in the evolutionary or developmental aspect in that they share common physical and functional aspects like topical toxicity and similar size within 100% greater length or 50% shorter length or peptide.
• Venomous peptides from the Australian Funnel Web Spider, genus Atrax and Hadronyche are particularly suitable and work well when treated by the methods, procedures or processes described by this invention. These spider peptides, like many other toxic peptides, including especially are toxic scorpion and toxic plant peptides, become topically active or toxic when treated by the processes described by this invention. Examples of suitable peptides tested and with data are provided herein. In addition to the organisms mentioned above, the following species are also specifically know to carry toxins suitable for being made special by the process of this invention.
• GIy Ser Ala lie Cys Thr GIy Ala Asp Arg Pro Cys Ala Ala Cys Cys
• the toxic peptides described above can be prepared in a variety of ways and in some embodiments they need not be prepared by any formal process.
• the peptides can simply be collected with or without other impurities in a composition and utilized.
• the peptides are lyophylized or they have some, most or nearly all liquid removed prior to being made special.
• the peptides are still wet and only excess liquid is removed.
• the peptides are in aqueous solutions or in something similar to an aqueous solution. The peptides need not be isolated or purified prior to being made special. [0062] Reproducable assays to measure topical insecticidal activity.
• the topical insecticidal activity of a peptide can be measured and quantified. Numerous assays are available. Several examples of reproducable assays useful to determine the topical activity of a peptide are provided in the examples below. These examples describe both peptide and assay in detail but they should not be used to limit the scope of the claims or invention.
• Toxin is ⁇ >-ACTX-Hvl a:
• Insect is House fly (Musca domestica) from Benzon research weighing between 12-20mg
• Tween 20 stock e.g. 1 1 1 ⁇ L 1 % Tween 20 + 889 ⁇ L water for the 0.111% Tween 20 stock, etc.
• the Tween 20 stock was added to the tube first, then DMSO, and finally the ⁇ -ACTX/DMSO stock.
• Acetone - The same 50 ⁇ g/ ⁇ L ⁇ -ACTX stock in DMSO was used to create a formulation in 90% acetone and 10% DMSO that would deliver a dose equivalent of 90,000 pmol/g when applied as a 2 ⁇ L droplet to to houseflies of an average mass of 16 mg.
• the toxin stock was added to the acetone first, and then a final volume of DMSO was added to reach 10% m/v DMSO. This was done to examine the amount of precipitate when dissolved toxin was added to acetone.
• a second ⁇ -ACTX solution was also prepared by dissolving 1.2 mg lyophilized ⁇ - ACTX (Auspep) in 240 ⁇ L acetone (5 ⁇ g/ ⁇ L stock). 50 ⁇ L of this stock was diluted in 121.5 ⁇ L of Acetone after which 17.15 ⁇ L DMSO was added (10% concentration). Calculations leading to an estimate the ⁇ -ACTX dosage for this formulation are as follows:.
• a control formulation of bovine serum albumin (BSA) was also prepared in acetone and DMSO. Due to the concentration of the stock BSA, the concentration of acetone was only about 60% in 10% DMSO.
• Houseflies were refrigerated for ⁇ 4 hr and then anesthetized with CO 2 .
• Each treatment formulation described above was applied to a group of ten anesthetized flies.
• the treatments consisted of a 2 ⁇ L droplet of the respective formulation, pipetted onto the dorsal thoracic body surface of a fly. Groups of ten anesthetized flies were used to test each treatment regime.
• the Acetone/DMSO solution rapidly evaporated from the cuticle.
• the DMSO formulations were allowed to absorb through the cuticle.
• DMSO DMSO added to a concentration of 10% killed 90% of houseflies (6/19/08) while ⁇ -ACTX dissolved in DMSO and then diluted in Acetone to a concentration of 90,000 pmol/g killed
• Topical application of ⁇ -ACTX in 10-20% DMSO in water was also insecticidal, but considerably less so than the Acetone/DMSO solution (30% vs. 70%).
• Toxin is ⁇ -ACTX-Hvla:
• SPTCIPSGQPCPYNENCCSQSCTFKENENGNTVKRCD (SEQ. ID. NO. 60) Synthetic. Molecular weight: 4050 Da. LD 50 in House-fly: 90.2 pmol/g. Administration and application of the formulation
• Insects House fly (Musca domestic ⁇ ) from Benzon research weighing between 12-18 mg (average mass 15 mg); 2 ⁇ L micropipette application onto dorsal thorax. Cabbage Looper (Trichoplusia n ⁇ ) from Benzon research weighing -30 mg; 2 ⁇ L micropipette application to dorsal anterior.
• Methanol/DMSO - Mixtures of ⁇ -ACTX in methanol (90%) and DMSO (10%) were prepared according to Table 5 from a stock preparation of 2.3 mg lyophilized ⁇ -ACTX dissolved in 460 ⁇ L of methanol to produce a mixture with a final peptide concentration of
• ⁇ -ACTX formed a cloudy precipitate when methanol was added which settled out when left on the bench, in a similar manner to atracotoxin/acetone suspensions. The preparation was vortexed for ⁇ 5 sec. to homogenize the precipitate prior to dilution.
• Table 5 treatment preparations are formulations of acetone/methanol/DMSO; order of addition when preparing each formulation was solvent, ⁇ -ACTX stock (where necessary), and finally DMSO.
• Treatment formulation was applied to a group of ten C ⁇ 2 -anesthetized houseflies.
• Treatment application consisted of a 2 ⁇ L droplet of the respective formulation, pipetted onto the dorsal thoracic body surface of a fly. Each mixture was vortexed immediately prior to each application to ensure suspension of precipitate particles. Following treatment, insects were placed in bins with fresh food and water, allowed to recover, and observed over 24 hours.
• each treatment formulation described above was also applied to a group of ten 2 nd instar T. ni.
• Treatment application consisted of a 2 ⁇ L droplet of the respective formulation, pipetted onto the anterior dorsal body surface. Each mixture was vortexed and immediately prior to each application to ensure suspension of precipitate particles. All treatment mixtures were vortexed immediately prior application to ensure suspension of precipitate particles. Following treatment, insects were placed on fresh media and observed for 24 hrs.
• Topical treatment of houseflies with a high dose of ⁇ -ACTX in methanol with DMSO was insecticidal with 100% mortality at 18 hours post treatment compared to only 40% mortality of houseflies treated with ⁇ -ACTX in acetone. There was no control mortality in either treatment. There was no difference between ⁇ -ACTX and control treatments of cabbage loopers in terms of insect death, feeding, or behavior. Methanol potentiated the topical activity of ⁇ -ACTX more than acetone in this experiment.
• Toxin is co- ACTX-Hv I a
• Methanol - Solutions of ⁇ -ACTX in Methanol were prepared according to Table 7, using a stock preparation of 1.0 mg lyophilized ⁇ -ACTX dissolved in 200 ⁇ L of methanol (5 mg/niL solution).
• Treatment formulation was applied to a group of ten C ⁇ 2 -anesthetized houseflies.
• Treatment application consisted of a 2 ⁇ L droplet of the respective formulation, pipetted onto the dorsal thoracic body surface of a fly. Each mixture was vortexed immediately prior to each application to ensure suspension of precipitate particles. Following treatment, insects were placed in bins with fresh food and water, allowed to recover, and observed over 60 hours.
• Methanol/ ⁇ -ACTX treatments without DMSO were not insecticidal, suggesting inclusion of an aprotic penetrant or some other type of molecular adjuvant is important to the activity of topical preparations of ⁇ - ACTX.
• SPTCIPSGQPCPYNENCCSQSCTFKENENGNTVKRCD (SEQ ID. NO. 55. ) Molecular weight: 4050.
• LD 50 in House-fly 90.2 pmol/g Freeze, dried aliquots of 1.5 mg toxin prepared from frozen stocks [0093]
• Topical application groups of ten house flies (Musca domestica) from Benzon research, weighing between 12-20 mg (average mass 16 mg), each received a 2 ⁇ L micropipette application of toxin precipitate suspended in Ethanol-DMSO on the dorsal thoracic surface of the body.
• Treated flies were kept in containers with ad libitum access to food and water and mortality (and "twitching" behavior, presumably resulting from disruption of physiological norms by action of the toxin) was scored thereafter as indicated in Table 12 below:
• GSSPT CIPSG QPCPY NENCC SQSCT FKENE NGNTV KRCD (SEQ ID. NO. 117) has three disulfide bridges: 6-20, 13-24 and 19-38.
• SEQ ID. NO. 118 has four disulfide bridges: 5-19, 12-24, 15-16, 18-34
• SEQ ID. NO. 119 has three disulfide bridges: 5-20, 12-25, 19-39
• St ⁇ ck_3 rU-ACTX-Hvla+2 : an aliquot of 1.5 mg freeze dried toxin suspended in 900 ⁇ L methanol and sonicated for 10-15 seconds with gentle ramp from setting "0" to setting "5" on sonicator to create fine particles.
• Stock 4 rKappa-Hvlc+2 : an aliquot of 1.5mg freeze dried toxin suspended in 900 ⁇ L acetone and sonicated for 10-15 seconds with gentle ramp from setting "0" to setting "5" on sonicator to create fine particles.
• Stock 5 rKappa-Hvlc+2 : an aliquot of 1.5mg freeze dried toxin suspended in 900 ⁇ L methanol and sonicated for 10-15 seconds with gentle ramp from setting "0" to setting "5" on sonicator to create fine particles.
• Topically applied formulations of the hybrid and kappa atracotoxin-ls are insecticidal when 90% acetone or 90% methanol is substituted for 90% ethanoi.
• the acetone and methanol formulations of the hybrid toxin may be slightly less insecticidal than the previously tested ethanol formulation. We believe that acetone and methanol formulations result in equivalent or slightly higher levels of insecticidal activity when compared to ethanol formulations of kappa toxin.
• SPTCEPSGQPCPYNENCCSQSCTFKENENGNTVKRCD (SEQ ED. NO. 60) having a Molecular weight: 4050.
• Topical application groups of ten house flies (Musca domestica) from Benzon research, weighing between 12-20mg (average mass 16mg), each received a 2 ⁇ L micropipette application of toxin precipitate suspended in Ethanol-DMSO on the dorsal thoracic surface of the body.
• DMSO was then added to the toxin suspension, the resulting mixture was vortexed, and a 100 ⁇ L aliquot of the alcohol-DMSO-peptide suspension was then removed for topical application assays and kept on ice for -2 hrs.
• each stock was made to a concentration such that a 2 ⁇ L application of the stock to the body surface of a -16 mg housefly would result in a toxin dose of -45,000 pmol/g.
• one of the four stocks described above was topically applied full-strength to houseflies, but in other cases, five-fold serial dilutions were performed (using the stocks and the corresponding 90% alcohol- 10% DMSO solution) in order to obtain a solution that could be used to deliver a lower toxin dose in a 2 ⁇ L volume.
• Negative control procedures (indicated as "-ve” in the table below) comprised house flies treated with 2 ⁇ L dorsal throracic applications of solutions of the alcohols in question (diluted to 90% v/v with DMSO).
• ventral abdominal application of the precipitate (of omega toxin in 90% ethanol/10% DMSO) appears to induce insect mortality with speed and effectiveness similar to, if not greater than, the induction of mortality by dorsal thoracic application of the same precipitate mixture. Since ventral abdominal application can be executed roughly twice as quickly as dorsal thoracic application, this points to a significant technical improvement for future topical application bioassays.
• the toxic insect peptides refers to peptides that are not from toxic insects, but that are toxic to insects. Their source need not be insects.
• sequence listing of this application a wide range of suitable toxic insect peptides are provided. This small selection of about 174 peptides includes representative peptides from spiders, scorpions and plants. Sequences 1 - 140 are from funnel web spiders, sequences 141 to 171 are from scoprions and sequences 172 to 174 are from plants.
• the sequence listing includes peptide examples where the source is Oldenlandia affinis which is known to produce a cyclic peptide referred to at a "Kalata" type peptide. The Oldenlandia plant family is known to produce peptides having insecticidal activity. Other insecticidal peptides from plants are known. Numerous venomus spider peptides, which are discussed throughout this application are also provided.

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